Pros Widescreen, great resolution, pre-installed software, backwards capability, 3D photo taking
Cons limited viewing range, low-res cameras, have to wait for online features.
Summary I've had the 3DS for little over 12 hours or so, but I'm already in love! Playing games in 3D is really cool and fun. Of course some games fare better than others due to the precise nature of the viewing area. I have Lego Star Wars, Pilotwings and Super Monkey Ball and all of those look great in 3D.
I really like taking 3D pictures and I totally wish the cameras could have been at least 2 Megapixel. I mean, seriously. However, the daytime and outdoor pictures seem to look pretty good and the camera does offer some neat customization features to help you get the most out of the lenses.
I'm a bit bummed out that there is no internet yet, but I'm sure that when it is enabled it will be really cool. The OK Go video is a great hint at the possibilities of 3D video on the 3DS.
It's a really hot package, and I recommend, but I understand that $250 is a lot to pay for some people. Perhaps as more games come online nad the internet features get more realized, it will seem like a better value. You'll get few complaints from me right now :)
Pros 3D effect works, Wide upper screen, Tad higher res out of screens, more security features, telescoping stylus, nice UI, Pseudo-Surround sound added
Cons Short battery life, low res cameras
Summary So far, it's a really nice upgrade from the regular DSi. Though, admitted that it has a lot of the features that the previous model has. But with all the support its getting from developers, it has so much more it'll be able to do. The 3D works to a T, but some of my friends who have seen it do get eye strain, some real easily, but as soon as you adjust the display, it's easy on them. Only one has actually got a headache from it within 15 minutes of playing with it. The Pseudo-Surround sound also works for it being "pseudo". The AR games are a blast. It's unfortunate though, that nintendo for some reason didn't include Pictochat into it, not even a local version. Battery isn't too bad, though I've only played street fighter 4 on it (still have all of my regular DS games). The Stylus is in a strang position than what I'm used to, but that'll quickly change. The pictures that I take look alright on the 3DS, of course, as soon as I backup the photos on my computer, they do look a little grainy. I love how the memory of the system can finally integrate with the memory of the SD card, helpful in the voice notes app. So, the system is a refresh for some folks, but it's great if you want to something that may pack a punch later on of the system's life.